1/* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.support.transition; 18 19import android.annotation.SuppressLint; 20import android.support.annotation.RequiresApi; 21import android.util.Log; 22import android.view.View; 23 24import java.lang.reflect.InvocationTargetException; 25import java.lang.reflect.Method; 26 27@RequiresApi(22) 28class ViewUtilsApi22 extends ViewUtilsApi21 { 29 30 private static final String TAG = "ViewUtilsApi22"; 31 32 private static Method sSetLeftTopRightBottomMethod; 33 private static boolean sSetLeftTopRightBottomMethodFetched; 34 35 @Override 36 public void setLeftTopRightBottom(View v, int left, int top, int right, int bottom) { 37 fetchSetLeftTopRightBottomMethod(); 38 if (sSetLeftTopRightBottomMethod != null) { 39 try { 40 sSetLeftTopRightBottomMethod.invoke(v, left, top, right, bottom); 41 } catch (IllegalAccessException e) { 42 // Do nothing 43 } catch (InvocationTargetException e) { 44 throw new RuntimeException(e.getCause()); 45 } 46 } 47 } 48 49 @SuppressLint("PrivateApi") 50 private void fetchSetLeftTopRightBottomMethod() { 51 if (!sSetLeftTopRightBottomMethodFetched) { 52 try { 53 sSetLeftTopRightBottomMethod = View.class.getDeclaredMethod("setLeftTopRightBottom", 54 int.class, int.class, int.class, int.class); 55 sSetLeftTopRightBottomMethod.setAccessible(true); 56 } catch (NoSuchMethodException e) { 57 Log.i(TAG, "Failed to retrieve setLeftTopRightBottom method", e); 58 } 59 sSetLeftTopRightBottomMethodFetched = true; 60 } 61 } 62 63} 64 65